ADOPTED LEVELS, GAMMAS for 155Lu

Author: N. Nica |  Citation: Nucl. Data Sheets 160, 1 (2019) |  Cutoff date: 21-Oct-2019 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-8375 keV 299S(n)= 10901 keV 197S(p)= -98 keV 8Q(α)= 5803 keV 3
S(2n)= 2.031×104 keV 197S(2p)= 3150 keV 8Q(EC)= 7.96×103 keV 3Q(ECp)= 4593 keV 16
Reference: 2017WA10

References:
  A  159Ta α decay (518 MS)  B  159Ta α decay (1.04 S)
  C  102Pd(58Ni,3P2NG)  D  102Pd(58Ni,PAG)

General Comments:

The two heavy-ion induced reaction dataset are in relatively good agreement. Adopted here are the data from the newer 102Pd(58Ni,pαγ) dataset that present a more detailed level scheme

Unless noted otherwise all data are from 102Pd(58Ni,pαγ) dataset (2016Ca42)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0 BCD 11/2- 68 ms 2 
% ε = 10 2
% α = 90 2
     
    20 6 A  D 1/2+ 138 ms 9 
% ε = 24 16
% α = 76 16
     
   806.70 20   CD (15/2-)      806.7 2 
  100

     0.0
11/2-
  1491.5 3   CD (19/2-)      684.8 2 
  100

   806.70
(15/2-)
  1780 4   CD (25/2-) 2.69 ms 3 
% α = 99.964 6
     
  1820.2 5   CD (23/2-)      328.7 3 
  100

  1491.5
(19/2-)
  2298.50 20   CD (27/2-)      518.5 2 
  100
[M1]
  1780
(25/2-)
  2958.2 3   CD (29/2+)      659.7 2 
  100
[E1]
  2298.50
(27/2-)
  3064.5 3    D (31/2+)      106.3 1 
  100
(M1)
  2958.2
(29/2+)
  3418.6 4    D      354.2 2 
  100

  3064.5
(31/2+)
  3445.7 4    D        
  3774.0 4    D      709.2 3 
  100

  3064.5
(31/2+)
  3861.9 4    D (35/2+)      416.2 2 
   443.3 2 
   797.5 3 
    9.2 5 
   25.0 5 
  100 1 


[E2]
  3445.7
  3418.6
  3064.5


(31/2+)
  4073.9 4    D (37/2-)      212.1 2 
   299.8 2 
  100.0 6 
   21.7 4 
[E1]

  3861.9
  3774.0
(35/2+)

  4633.6 5    D      559.5 2 
  100

  4073.9
(37/2-)
  4938.1 6    D     1076.2 4 
  100

  3861.9
(35/2+)
  5031.8 5    D      397.9 2 
   958.5 3 
  100.0 12 
   26.9 12 


  4633.6
  4073.9

(37/2-)
  5128.1 6    D     1054.2 4 
  100

  4073.9
(37/2-)
  5285.9 6    D     1212.0 4 
  100

  4073.9
(37/2-)
  5372.9 5    D      341.1 2 
  100

  5031.8

  5482.8 6    D      544.7 2 
  100

  4938.1

E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  5667.4 6    D      381.5 2 
  100

  5285.9

  6033.0 6    D      550.2 2 
  100

  5482.8

  6059.9 6 ?   D      687.0 3 
  100

  5372.9

  6265.3 6    D     1233.5 4 
  100 3 

  5031.8

  6436.9?   D      377?
  100

  6059.9

  7095.9?   D      659?
  100

  6436.9

Jπ(level): Values from 102Pd(58Ni,pαγ) dataset (2016Ca42) are adopted based solely on systematics of odd-A n=84 istones of 155Lu and shell model calculations

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Band based on (11/2-) g.s.. Based on
     0.0 11/2- 68 ms 2 
% ε = 10 2
% α = 90 2
     
   806.70 20  (15/2-)        
  1491.5 3  (19/2-)      684.8 2 
  100

   806.70
(15/2-)
  1820.2 5  (23/2-)      328.7 3 
  100

  1491.5
(19/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Cascade based on the (25/2-) isomer.
  1780 4  (25/2-) 2.69 ms 3 
% α = 99.964 6
     
  2298.50 20  (27/2-)        
  2958.2 3  (29/2+)      659.7 2 
  100
[E1]
  2298.50
(27/2-)
  3064.5 3  (31/2+)      106.3 1 
  100
(M1)
  2958.2
(29/2+)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  2298.50 (27/2-)      518.5 2 [M1]0.0404α=0.0404, α(K)=0.0339 5, α(L)=0.00505 7, α(M)=0.001132 16, α(N)=0.000267 4, α(O)=3.97×10-5 6, α(P)=2.49E-6 4
  2958.2 (29/2+)      659.7 2 [E1]0.00351α=0.00351, α(K)=0.00297 5, α(L)=0.000420 6, α(M)=9.35×10-5 14, α(N)=2.20E-5 3, α(O)=3.23E-6 5, α(P)=1.93E-7 3
  3064.5 (31/2+)      106.3 1 (M1)3.09α=3.09, α(K)=2.58 4, α(L)=0.398 6, α(M)=0.0895 13, α(N)=0.0211 3, α(O)=0.00313 5, α(P)=0.000193 3
  3861.9 (35/2+)      797.5 3 [E2]0.00625α=0.00625, α(K)=0.00512 8, α(L)=0.000880 13, α(M)=0.000200 3, α(N)=4.71×10-5 7, α(O)=6.74E-6 10, α(P)=3.52E-7 5
  4073.9 (37/2-)      212.1 2 [E1]0.0492α=0.0492, α(K)=0.0411 6, α(L)=0.00629 9, α(M)=0.001408 20, α(N)=0.000329 5, α(O)=4.67×10-5 7, α(P)=2.45E-6 4

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.011/2- 68 ms 2 
% ε = 10 2
% α = 90 2
Eα to g.s. of 151Tm: 5651.3 21, weighted average of: 5655 5 (2018Pa37), 5655 5 (1996Pa01), 5648 5 (1993Li34), 5648 5 (1991To08), 5647 5 (1989Ho12), 5656 6 (1981HoZM). Unc for 2018Pa37 was assigned by evalutor. One can see that 2018Pa37 and 1996Pa01 give identical values and 2018Pa37 show no evidence of real measurement for this branch, whence the possibility that they quoted this value from 1996Pa01, although on Fig. 1 of 2018Pa37 showing the α decay scheme of both 155Lu (11/2-) g.s. and (25/2-) isomer they state that they show their measured figures. If one excludes 5655 5 of 2018Pa37 from weighted avarage one gets 5650.5 23 which by rounding off gives the same value as the one including it. Also 2018Pa37 and 1996Pa01 are done by different groups although the first author is the same. Same first authorship with different groups characterizes 1989Ho12 and 1981HoZM, reason for which the results of both references were included in the weighted average.
E(level): Band based on (11/2-) g.s.. Based on.
   806.70(15/2-)   E(level): Band based on (11/2-) g.s.. Based on.
  1491.5(19/2-)   E(level): Band based on (11/2-) g.s.. Based on.
  1780(25/2-) 2.69 ms 3 
% α = 99.964 6
Eα to g.s. of 151Tm: 7385.7 34, weighted average of: 7383 4 (2018Pa37) and 7390 5 (1996Pa01). Others: 7379 15 (1993Li34), 7408 10 (1981HoZM).
  1820.2(23/2-)   E(level): Band based on (11/2-) g.s.. Based on.
  2298.50(27/2-)   Proposed as the fully aligned configuration.
  6059.9   E(level): Level marked as uncertain in Fig. 2 "Level Scheme " of 2016Ca42 102Pd(58Ni,pαγ) dataset presumably because the order of the γ rays in cascade is not certain.
  6436.9   E(level): Level marked as uncertain in Fig. 2 "Level Scheme " of 2016Ca42 102Pd(58Ni,pαγ) dataset presumably because the order of the γ rays in cascade is not certain.
  7095.9   E(level): Level marked as uncertain in Fig. 2 "Level Scheme " of 2016Ca42 102Pd(58Ni,pαγ) dataset presumably because the order of the γ rays in cascade is not certain.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  3064.5   106.3M(γ): assumed by 2016Ca42 in 102Pd(58Ni,pαγ) dataset: d, due to higher lifetimes expected from higher mult’s, (M1) from better compatibilty with intensities of other transitions

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